Intro To Partial Dentures Flashcards
what is a prosthesis?
an artificial body part that replaces a missing part
why do patients have missing teeth?
6
cancer
caries
periodontitis
trauma
hypodontia
endodontic disease
what are the intra and extra-oral anatomical consequences of losing teeth?
2(2,3)
extra-oral
* change in facial appearance
* TMJ problems
intra-oral
* alveolar resorption
* tooth movement
* toothwear
what are the consequences of losing teeth?
6
anatomical
unwanted tooth movement
appearance
functional
emotional/psychological
shortened dental arch
What is this?
Mesial cantilever resin bonded bridgework
What is this?
Fixed-fixed resin bonded bridgework
What is this and what is being shown?
Fixed-fixed 3 unit bridge
Abutment teeth either side are prepared for crowns (retainers)
Replacement tooth Pontic is held in place by retainers
What is this?
Implant supported crowns
What is this?
Implant bridgework
What is this?
Removable partial denture
What is this?
Removable partial denture
What is this?
Removable partial denture
What is this?
Complete dentures
What is this?
Complete dentures
What is a saddle?
Area of alveolar ridge where teeth are missing
What is an abutment tooth?
The tooth adjacent to the gap
What is shown here?
Free end saddle
One abutment tooth
What is shown here?
Bounded saddle
2 abutment teeth
What is support?
The resistance to vertical movement of the denture towards the tissue
What is retention?
The resistance to displacement of the denture away from the tissue
What is stability?
The resistance to horizontal movement of the denture
What is a rest seat and how are they described?
Prepared site on abutment tooth to provide support for denture
Described by position: occlusal, incisal, cingulum
What is a clasp?
Provides retention and distributes pressure on teeth
What is a connector and what are the different types?
Links all aspects of the denture together
Bar, ring, plate
What kind of acrylic is usually used in dentures?
Polymethylmethacrylate (PMMA)
What metal material is used in dentures?
Cobalt chrome
What classification is used to describe the pattern of missing teeth?
Kennedy classification
Describe each class of missing teeth
Class 1: 2 free end saddles
Class 2: 1 free end saddle
Class 3: 1 bounded saddle
Class 4: 1 bounded saddle that crosses the midline in the anterior aspect
What are the methods of support classified as?
craddock classification
Describe each class of support for a partial removable denture
Craddock class 1: saddles supported on both sides by abutment teeth - tooth borne
Craddock class 2: vertical biting forces resisted entirely by soft tissues - mucosa borne
Craddock class 3: tooth supported at only one end of the saddle - tooth and mucosa borne
